Home / 12,478,729.80-18,702,348.30-6,075,193.80

Finding the Fourth Proportional to 12,478,729.80, 18,702,348.30 and 6,075,193.80

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Solution

The fourth proportional to 12,478,729.80, 18,702,348.30 and 6,075,193.80 is: 9,105,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,729.80 : 18,702,348.30 = 6,075,193.80 : x
  2. Step 2: Convert to fraction form
    12,478,729.80/18,702,348.30 = 6,075,193.80/x
  3. Step 3: Cross multiply
    12,478,729.80x = 18,702,348.30 × 6,075,193.80
  4. Step 4: Simplify right side
    12,478,729.80x = 113,620,390,437,600.55
  5. Step 5: Solve for x
    x = 113,620,390,437,600.55/12,478,729.80
  6. Step 6: Final answer
    x = 9,105,124.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.